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Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 236 · 40 questions
TalentJR

What you do (Warm, stir, small): 1. An adult pours the same amount of warm water and cold water into two glasses. 2. Add one level teaspoon of sugar to each at the same time. 3. Stir each the same number of times and time how long the sugar takes to vanish. 4. Look, do not taste — then compare the two times.

NameDateTime takenScore ___ / 40
  1. 1.True or false: glucose powder dissolves in water. (a) True (b) False
  2. 2.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is what we measure? (a) the water temperature (b) the amount of water (c) the stirring (d) time to dissolve
  3. 3.True or false: a balloon is not needed for the dissolving test. (a) True (b) False
  4. 4.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the stirring”? (a) we measure it (b) we keep it the same (c) we change it
  5. 5.🥄 Which of these does not dissolve in water? (a) sugar (b) chalk powder (c) glucose powder (d) food colour
  6. 6.🧺 Do we need honey for the dissolving test? (a) needed (b) not needed
  7. 7.🥄 Which of these dissolves faster? (a) sugar left unstirred (b) a big sugar cube (c) sugar in icy water (d) sugar in warm water
  8. 8.🥄 Does table salt dissolve in water? (a) does not dissolve (b) dissolves in water
  9. 9.🧺 Which of these is needed for the dissolving test? (a) a mirror (b) a balloon (c) a magnet (d) warm water
  10. 10.True or false: food colour dissolves in water. (a) True (b) False
  11. 11.True or false: sugar is needed for the dissolving test. (a) False (b) True
  12. 12.🥄 Which of these dissolves faster? (a) sugar in icy water (b) a big sugar cube (c) powdered sugar (d) sugar left unstirred
  13. 13.True or false: a teaspoon is not needed for the dissolving test. (a) False (b) True
  14. 14.🥄 Which of these does not dissolve in water? (a) food colour (b) sugar (c) sand (d) table salt
  15. 15.🔍 Which is the odd one out? (a) sand (b) chalk powder (c) sawdust (d) sugar
  16. 16.🥄 Which of these dissolves slower? (a) powdered sugar (b) sugar in warm water (c) sugar stirred well (d) sugar left unstirred
  17. 17.True or false: sugar stirred well dissolves slower. (a) True (b) False
  18. 18.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a clock or timer (b) sugar (c) two clear glasses (d) honey
  19. 19.🧺 Do we need a mirror for the dissolving test? (a) not needed (b) needed
  20. 20.🛟 Who should pour the warm water in the dissolving test? (a) a friend who is running (b) nobody needs to (c) a grown-up (d) the youngest child
  21. 21.🧺 Which of these is not needed for the dissolving test? (a) a clock or timer (b) sugar (c) cotton wool (d) cold water
  22. 22.🔮 Predict: which dissolves faster — a sugar cube or the same amount of powdered sugar? (a) the sugar cube (b) powdered sugar (c) both the same (d) neither of them
  23. 23.🥄 Does small pebbles dissolve in water? (a) does not dissolve (b) dissolves in water
  24. 24.🥄 Does sugar in warm water dissolve faster or slower? (a) faster (b) slower
  25. 25.🔍 Which is the odd one out? (a) baking soda (b) table salt (c) cooking oil (d) glucose powder
  26. 26.🧺 Do we need cold water for the dissolving test? (a) needed (b) not needed
  27. 27.🥄 Does sugar dissolve in water? (a) dissolves in water (b) does not dissolve
  28. 28.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the amount of water is the one thing we change. (a) True (b) False
  29. 29.🔍 Sand is stirred into water. What do you see after a while? (a) it turns blue (b) it settles at the bottom (c) it dissolves (d) it floats up
  30. 30.🧺 Which of these is needed for the dissolving test? (a) a comb (b) honey (c) two clear glasses (d) a balloon
  31. 31.🥄 Why does sugar dissolve faster in warm water? (a) warm water is thicker (b) cold water is wet (c) sugar likes the dark (d) particles move faster
  32. 32.🥄 Does sawdust dissolve in water? (a) does not dissolve (b) dissolves in water
  33. 33.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a balloon (b) two clear glasses (c) warm water (d) a teaspoon
  34. 34.True or false: chalk powder dissolves in water. (a) True (b) False
  35. 35.🥄 Which of these dissolves faster? (a) sugar in icy water (b) sugar stirred well (c) sugar left unstirred (d) a big sugar cube
  36. 36.True or false: sugar left unstirred dissolves faster. (a) False (b) True
  37. 37.True or false: sugar does not dissolve in water. (a) True (b) False
  38. 38.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “time to dissolve”? (a) we measure it (b) we change it (c) we keep it the same
  39. 39.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is kept the same? (a) the amount of water (b) the water temperature (c) time to dissolve
  40. 40.🛟 How should you check if the sugar has dissolved? (a) smell it closely (b) look for leftover grains (c) poke it with a finger (d) taste it

Answer key

  1. True
  2. time to dissolve
  3. True
  4. we keep it the same
  5. chalk powder
  6. not needed
  7. sugar in warm water
  8. dissolves in water
  9. warm water
  10. True
  11. True
  12. powdered sugar
  13. False
  14. sand
  15. sugar
  16. sugar left unstirred
  17. False
  18. honey
  19. not needed
  20. a grown-up
  21. cotton wool
  22. powdered sugar
  23. does not dissolve
  24. faster
  25. cooking oil
  26. needed
  27. dissolves in water
  28. False
  29. it settles at the bottom
  30. two clear glasses
  31. particles move faster
  32. does not dissolve
  33. a balloon
  34. False
  35. sugar stirred well
  36. False
  37. False
  38. we measure it
  39. the amount of water
  40. look for leftover grains

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